When temperatures rise, many people swim to beat the heat. But swimming does a lot more than that. It is a great workout for the whole body. Health experts at the University of California, Berkeley state that swimming is a great way to stay in shape.
Swimming is a very good high-intensity cardio exercise (高度有氧运动). Cardio involves the heart, lungs, and circulatory(血液循环的) system. The Berkeley experts say swimming can increase your heart rate and exercise your lungs. Some high-intensity cardio exercises, such as running, can improve your health but can also be likely to hurt your body. Swimming, on the other hand, is beneficial to the body and people often use it to recover from injuries.
Paul Waas, a coach and former competitive swimmer, says that swimming is more beneficial to the body than other sports because it is low-impact. A mother called Paloma with two daughters says that for her girls, swimming has been more beneficial to the body than some other sports. She said, “So far, I think it’s been good for their bodies. It’s a high-intensity cardio exercise, as you know. But it spares their knees, their joints, and so on. So it’s rare to get injured in swimming.”
The coach adds that swimming is a great exercise for kids who grow a lot in a short amount of time. Coach Waas said, “Swimming is really good for kids who are growing fast. Their bones might be hurting and they’re suffering from serious pain all the time. And then they get in the pool and, you know, they can float and stretch out a little bit and it reduces that as well.”
People who are overweight can also find relief through swimming. Their weightlessness in the water can help them to avoid injury as they exercise.
1.According to Paragraph 2,swimming is better than running because
A.it’s a bit easier to do B.it’s better and safer for our bodies
C.it makes people feel more comfortable D.it increases our heart rates more slowly
2.What’s Paul Waas’s attitude towards swimming?
A.Positive. B.Negative. C.Doubtful D.Worried
3.What does the underlined word that in Paragraph 4 refer to?
A.Floating and stretching out. B.Fast physical growth of kids.
C.Swimming in a swimming pool. D.The pain caused by kids’ physical growth.
高一英语阅读选择中等难度题
When temperatures rise, many people swim to beat the heat. But swimming does a lot more than that. It is a great workout for the whole body. Health experts at the University of California, Berkeley state that swimming is a great way to stay in shape.
Swimming is a very good high-intensity cardio exercise (高度有氧运动). Cardio involves the heart, lungs, and circulatory(血液循环的) system. The Berkeley experts say swimming can increase your heart rate and exercise your lungs. Some high-intensity cardio exercises, such as running, can improve your health but can also be likely to hurt your body. Swimming, on the other hand, is beneficial to the body and people often use it to recover from injuries.
Paul Waas, a coach and former competitive swimmer, says that swimming is more beneficial to the body than other sports because it is low-impact. A mother called Paloma with two daughters says that for her girls, swimming has been more beneficial to the body than some other sports. She said, “So far, I think it’s been good for their bodies. It’s a high-intensity cardio exercise, as you know. But it spares their knees, their joints, and so on. So it’s rare to get injured in swimming.”
The coach adds that swimming is a great exercise for kids who grow a lot in a short amount of time. Coach Waas said, “Swimming is really good for kids who are growing fast. Their bones might be hurting and they’re suffering from serious pain all the time. And then they get in the pool and, you know, they can float and stretch out a little bit and it reduces that as well.”
People who are overweight can also find relief through swimming. Their weightlessness in the water can help them to avoid injury as they exercise.
1.According to Paragraph 2,swimming is better than running because
A.it’s a bit easier to do B.it’s better and safer for our bodies
C.it makes people feel more comfortable D.it increases our heart rates more slowly
2.What’s Paul Waas’s attitude towards swimming?
A.Positive. B.Negative. C.Doubtful D.Worried
3.What does the underlined word that in Paragraph 4 refer to?
A.Floating and stretching out. B.Fast physical growth of kids.
C.Swimming in a swimming pool. D.The pain caused by kids’ physical growth.
高一英语阅读选择中等难度题查看答案及解析
Most scientists are now certain that global warming is taking place. Gases such as carbon dioxide are creating a warm blanket around the earth. This blanket is trapping heat in the atmosphere, and so raising the temperature of the earth.
In Europe, eight of the last ten years have seen record high temperatures. On the other hand, the countries around the Mediterranean Sea are receiving even less rain than before. In Sub- Saharan Africa the crops are drying out in the fields and people are dying of starvation. In 1999, the southern United States was struck by a serious of destructive(毁灭性的) hurricanes. Scientists expect such trends to continue, and to worsen, if global warming cannot be stopped.
In addition to worrying about rising global temperatures and extreme weather conditions, scientists are closely monitoring sea levels around the world. They are slowly rising, as the northern and southern polar ice caps start to melt. This will have serious consequences for low-lying countries near the sea. Already parts of these places are disappearing under the rising sea water.
According to a new research, one contradictory feature(特征) of global warming is that it will probably lead to a period of much colder weather. Scientists base their theory on what happened the last time the world warmed up, 8,300 years ago. They have discovered that when the ice melted from the northern polar ice cap it became trapped in a lake in northern Canada. As more ice melted, this lake suddenly burst open, pouring millions of tons of freezing fresh water into the North Atlantic. This flood of water prevented the normal flow of water in the Atlantic, which takes warm water from the tropics(热带地区) north to Europe. When this flow of warm water was cut off, temperatures in Europe dropped by between three and eight degrees over the next 200 years. ''That's the concern here,'' says Richard Alley, an American climate expert. ''The climate hasn't varied much in 8, 000 years. But big changes could come back!''
1.What is the overall effect of global warming on Europe?
A.A warmer climate. B.A decline in rainfall.
C.An increase of hurricanes. D.A decrease of crop production.
2.What is Paragraph 3 mainly about?
A.The rising sea level. B.The melting of icebergs.
C.The increase in disasters. D.The cause of global warming.
3.How does the author describe the climate change in Europe 8 ,300 years ago?
A.By offering statistics. B.By giving an example.
C.By making comparisons. D.By analyzing the process.
4.What can we infer from Richard Alley' s words?
A.Global climate change will bring more disasters.
B.Global warming will likely produce a colder climate.
C.Global warming will continue for the next two centuries.
D.Global climate will remain unchangeable in the next 8,000 years.
高一英语阅读选择困难题查看答案及解析
A
A woman is swimming at night in a dark sea. Suddenly, she is pulled underwater. She surfaces, cries in terror, then disappears forever. This is the opening scene from the 1975 film Jaws. This film was a great hit, but it made things worse.
Jaws made people frightened of sharks, especially of the great white shark. Some stopped swimming in the sea, afraid of the horrible creature from the film. Others started fishing for sharks, killing as many as they could. At that time, nobody cared if sharks were killed, or how many were killed. People just wanted them killed.
After 1975,the number of large sharks fell quickly around the world.This was not only due to fear of sharks, but also finning, a type of fishing where sharks are caught and their fins cut off. Unexpectedly, finning would have a powerful effect upon Peter Benchley, who wrote the book the film Jaws was based on.
One day in 1980,Benchley was diving when he came across an awful sight.He saw fishermen finning and sharks being killed,which caused a deep change in him.From then on, he saw people as a danger to sharks,rather than the other way round.Also,he admitted that his book was wrong about sharks' behavior."Sharks don't target(以…为目标）humans,"he said.Experts have proved that sharks do not see people as food, and they attack us by mistake. Only around six people are killed by sharks every year.
Today,as we learn more about sharks,more people than ever want to protect them from extinction.
1.The film Jaws led to
A.an end of shark fishing
B.a rise in shark population
C.the popularity of shark movies
D.people's scare about sharks
2.How did the sight of finning affect Peter Benchley?
A.It woke him up to his false idea of sharks.
B.It inspired him to do research about sharks.
C.It drove him to learn how to protect sharks.
D.It encouraged him not to be afraid of sharks.
3.What is the best title for the text?
A.Sharks:Dangerous or Endangered
B.Jaws:the Hottest Shark Movie Ever
C.Shark Attacks:Not a Problem Anymore
D.Humans:the Favourite Target of Sharks
高一英语阅读选择中等难度题查看答案及解析
Many people thought a computer wasn't supposed to be able to beat a top master at the ancient Chinese game, Weiqi, for at least another 10 years. But AlphaGo, an artificially intelligent system(人工智能系统) designed by Google, made it. It easily beat Lee Sedol last year, one of the best players in the world. It challenged the world's top players to show how much progress it had made over the past few years.
In the late of May, 2017, AlphaGo appeared in China and played against 19-year-old Ke Jie in Wuzhen, China. He is No. 1 player now in the world. However, the result wasn't out of people's expectation. He lost the matches. Though Ke Jie tried his best and he once saw the victory just a step away, he lost his best chance when he became excited.
At the press conference(新闻发布会) after the match, Ke Jie was interviewed by the reporters.He said he had realized how powerful AlphaGo was, and it was getting perfect. When a Chinese reporter asked him in English, the reporter spoke so fast that the interpreter(口译员 ) couldn't catch him. Ke Jie got kind of angry and told him that it was unnecessary for two Chinese to speak English. The reporter apologized to him and offered to ask him for a coffee.
The cat and mouse game is over, but the challenge between man and robots will still go on.
1.Which was the most probable date when Ke Jie played against AlphaGo?
A. May 5. B. May 23.
C. May 18. D. May Day
2.Why did Ke Jie get angry at the press conference?
A. Because he lost the game.
B. Because the reporter couldn't catch the interpreter.
C. Because the reporter asked him in English.
D. Because the reporter wasn't able to speak Chinese well.
3.According to the passage, which of the following statements is True?
A. People thought a computer could beat humans many years ago.
B. Ke Jie was expected to lose the matches.
C. Ke Jie asked the reporter for a coffee.
D. AlphaGo had great trouble winning the game last year.
4.AlphaGo is______________.
A. Ke Jie B. Lee Sedol
C. a Weiqimatch D. an artificially intelligent system
高一英语阅读理解中等难度题查看答案及解析
New climate-control jackets have helped people stay warm in subzero conditions, and even made cows comfortable enough to produce more milk. But it all began with an Indian graduate’s simple wish for clothing that could be used for both the cold Boston winters and heated MIT campus rooms. Now, the MIT graduated company has begun selling the jackets and other clothes that allow wearers to control their level of comfort without adding or removing layers. “Our products can go from 0°C to 100 °C in the push of a button,” said Vistakula, founder and CEO of the company. “We have four levels of heating and four levels of cooling that include low, medium, high and very high.”
When electricity runs through the junction where two different metals meet, it creates a temperature difference so that one side heats up and the other side cools down. Such heat-exchange equipment also needs fans to blow away the heat. “We were able to reduce the weight and get rid of the need for a fan,” Vistakula told Innovation News Daily. “That made it very suitable to put it into clothes.”
The current clothing runs on a range of laptop batteries (电池) that can support up to eight hours of hot or cold comfort. Aside from shoes, jackets and bike helmets, the startup also sells knee and elbow packs that provide hot or cold therapy (疗法) for aching joints. That’s just the beginning, as the 20-person team tries many new and different applications (应用) in the search to find what works. They have their eyes set on a “HaemoSave” application that could use freezing temperatures to control bleeding, and pain during medical emergencies. “That’s at a very early stage,” Vistakula explained.
“It works for superficial (表面的) wounds, but we have to do deeper wounds and see what happens.” In another case, tests with jackets adapted for cows succeeded in enabling the cows to produce more milk. But the current costs mean that farmers can’t afford such equipment - at least not until the company scales up its production and lowers the price.
It’s an ambitious goal, but their confidence is supported by the startup’s innovation (创新) philosophy. “Nature has been innovating for billions of years, so you just have to look in the right place,” Vistakula said. “If you go looking for answers, you’ll find them.”
1.Which of the following statements is TRUE according to the passage?
A.The technology were first designed to control climate.
B.The clothing is user-friendly with a simple push of button.
C.The clothing runs on batteries that can last at least eight hours.
D.The clothing needs fans to create a temperature difference.
2.According to Vistakula, next they have to test whether HaemoSave can ________.
A.be applied to reduce pain B.be used to control bleeding
C.function for deeper wounds D.make body temperatures low
3.It can be inferred from the passage that ________.
A.the technology doesn’t work well in practice
B.the technology can be widely applied in life
C.the company will increase production to meet market needs
D.the company is now facing a very uncertain future
4.What can we conclude from what Vistakula said in the last paragraph?
A.We can probably innovate anything in nature.
B.Innovation should be encouraged to protect nature.
C.It has taken billions of years for nature to change.
D.We should innovate as it agrees with Nature.
高一英语阅读选择中等难度题查看答案及解析
Some people say chili peppers (辣椒) can help you breathe better if you have a cold. Others believe that chilies give you more energy. We cannot tell whether these ideas are true or false. But we can tell you that people have been growing chilies for centuries, and there are many kinds—about two hundred kinds of chili peppers.
Chilies need a warm climate to grow better. If you plant the seeds outside when the weather is cold, place the seeds in a glass. That will add more warmth from the sun so as to make the temperature inside higher than outside.
If you plant inside, fill a pot with soil. The pot should have holes in the bottom so water can run out. Drop several seeds over the surface of the pot and cover them with some soil. Then cover the top of the pot with a piece of plastic. Place the pot in a warm area.
Take off the plastic when the chilies start growing; when the plants have reached about two centimeters high, place each one carefully in its own pot.
When the roots show through the holes in the bottom of pot, put each young plant into a bigger pot which is about twelve centimeters high. When the plants are twenty centimeters high, tie the plants to a stick placed in the pot to support them.
When the chili peppers are thirty centimeters, get rid of the tops. That will make new branches grow. When the first flowers show, give the plants some potash fertilizer (钾肥). When the weather is warm, put them outside. Make sure that they get plenty of light and water.
Some people like to harvest chilies when they are green. Others like to harvest them when they are red. Both give color, taste and different amounts of heat to salads, soups, dishes and other foods.
1.We can know from the passage that _________.
A.chilies can make us breathe better
B.chilies can give our body more energy
C.chilies has been grown for a long time.
D.a red chili is hotter than a green one
2.In the cool weather , the glass which the chili seeds are placed in can ___________.
A.increase the temperature inside B.make the air inside cleaner
C.stop the sun drying up the seeds D.stop wind blowing away the seeds
3.What’s the right order to plant chilies inside?
①Getting rid of the tops of the chili plants.
②Covering the top of the pot with plastic
③Dropping chili seeds onto the soil in the pot.
④Giving potash fertilizer to the chili plants.
A.②③①④ B.①④②③ C.①③②④ D.③②①④
4.What’s the main idea of the passage?
A.The meanings of planting chilies B.The steps of planting chilies
C.The advantages of planting chilies D.The varieties of chilies
高一英语阅读选择中等难度题查看答案及解析
The Great Barrier Reef has seen its third mass bleaching (大规模白化) event in five years. For the first time, all three sections of the Australian reef have been badly affected. The damage happened in February when the area was exposed to the hottest month of water temperatures on record.
Surveys conducted by Terry Hughes at James Cook University in Australia and his team during March made it known that 25 percent of the reef had been badly bleached and 35 percent bleached to some degree. The northern, central and southern sections of the reef were all hit.
Terrible bleaching also struck in 1998, 2002, 2016 and 2017, but was limited to one or two sections. This is the first time that all three sections have experienced terrible bleaching at exactly the same time, says Hughes. “It’s heartbreaking.”
Some of the damaged corals（珊瑚）will survive, including more heat-resistant（耐热的） species. But many others were probably “literally cooked” at the peak of the heatwave in early 2020, says Hughes. Others will die more slowly from stress over the next few months, he adds. Hughes has serious concern about the southern reef, which was mostly unaffected in former bleaching events and hasn’t developed the same heat resistance as other parts.
The 2016 and 2017 events killed about half the coral on the reef. It usually takes a decade for even fast-growing corals to recover, meaning the latest damage will seriously weaken the reef’s ability to recover, says Hughes. The high frequency of mass bleaching in recent years has been driven by climate change, which results from human activity and is steadily raising ocean temperatures. The only way to deal with the problem is to immediately reduce the release of greenhouse gases, says Hughes.
1.What can we learn from the surveys by Hughes and his team?
A.The entire reef has experienced bleaching.
B.The surveys about the reef are done once a year.
C.The hottest month of water temperatures is February.
D.60 percent of the reef suffered from serious bleaching.
2.Why is Hughes worried about the southern reef most?
A.Many corals will die slowly from stress.
B.It has been badly bleached for several years.
C.It hasn’t formed the ability to fight against the heat.
D.The government hasn’t shown any concern about it.
3.What is this text mainly about?
A.Surveys on reef bleaching.
B.A report on climate change.
C.An investigation into global warming.
D.Warning messages on human activities.
高一英语阅读选择中等难度题查看答案及解析
课文填空
Contrary to what many people might 1.,evidence shows that sharks seldom attack humans.There are three types of shark attacks.In the main type,the shark attacks you because it 2.you for a fish,but when it tastes human flesh it decides to give up and swims away.In the second type,the shark pushes you with its nose to find out if you are 3. to be eaten,and then 4.you if it thinks you are.In the third type,the shark waits for you to swim by,and then attacks you suddenly.The last two types of attack more often 5.in the death of humans.
高一英语根据课文内容填空中等难度题查看答案及解析
For the first time, a causal link has been established between climate(气候) change and the timing of a natural event-the appearance of the common brown butterfly.
Although there have been strong connections between global warming and changes in the timing of events such as animal migration and flowering, it has been hard to show a cause-and-effect link. This is what Michael Kearney and Natalie Briscoe of the University of Melbourne, Australia, have now done.
The researchers compared temperature changes in Melbourne-where the butterfly is common-with recorded observations of the first brown butterfly to be seen in the spring since the 1940s.With each of the past ten years, the butterflies appeared 1.6 days earlier and Melbourne heated by 0.14℃. Overall, the butterfly now appears on average 10.4 days before it did in the 1940s.
The pair are confident in the relationship for two reasons. First, they placed eggs of the butterfly, in special boxes where temperature could be controlled and found that each larval stage had a different response to warmer-than-normal conditions. The egg, which is laid in late summer, and the first larval stage do well at high temperatures, says Kearney. The second to the fifth stages occur in winter and can't survive high temperatures. The knock- on effect is that the larval pupates earlier and the butterfly appears sooner. Second, they made a mathematical model combining these physiological effects of temperature on development with climate data. The model precisely matched the observed changes in butterfly emergence date.
The researchers used several climate models to find out what is likely to have caused the rise in Melbourne's temperature, and ruled out the possibility that natural weather events could account for the warming.
1.What is the relationship between the rise in temperature and the butterfly appearance?
A.They are linked in a difficult way.
B.They are related in a cause-and-effect way.
C.They have a direct relationship with each other.
D.They have no connection with each other.
2.Why were the researchers confident about their finding?
A.They had used the most advanced equipment in the world.
B.Their finding got support from the textbooks.
C.The results of their study is based on expert judgement.
D.Their experiment proved their previous guessing.
3.What does the underlined part "The knock-on effect" in paragraph 4 mean?
A.The effect caused by the thing that happened before.
B.The effect of things that happened at the same time.
C.The effect of one thing causing the other long after.
D.The effect of one thing causing the other quickly.
4.What can be inferred from the text?
A.The exact reason for Melbourne's temperature rise is very clear.
B.Climate models cannot exactly show climate change in history.
C.The timing of the butterfly appearance will be earlier with increased warming.
D.The rise in temperature decides the possibility of natural weather events.
高一英语阅读选择中等难度题查看答案及解析
The government's top Great Barrier Reef scientist says a third mass coral bleaching (珊瑚白化) event in five years is a clear signal that the marine wonder is “calling for urgent help on climate change. Corals can recover from mild bleaching, but severe bleaching can kill corals.
Prof Terry Hughes, director of the Centre of Excellence for Coral Reef Studies at James Cook University, surveyed 1,036 reefs from a plane over nine days in late March.
The marine park authority also had an observer on the flights. The survey has released maps showing that serious levels of bleaching occurred in 2020 in all three sections of the reef northern, central and southern. Some 25% of the reefs were seriously bleached-meaning that more than 60% of the corals on each reef had bleached.
The Great Barrier Reel has experienced five mass bleaching events-1998. 2002,2016, 2017 and 2020 -all caused by rising ocean temperatures driven by global heating. Hughes said there probably would not be the same level of coral death in the north and central regions in 2020 as in previous years, but this was partly because previous bleaching outbreaks had kill off the less heat -tolerant species The 2020 bleaching was second only to 2016 for severity(严重性), Hughes said.
Dr. David Wachenfeld，chief scientist at the Great Barrier Reef Marine Park Authority, told Guardian Australia "My greatest fear is that people will lose hope for the reef. Without hope there's no action. People need to see these bleaching events, They are clear signals that the Great Barrier Reef is alling for urgent help and for us to do everything we can”.
Measures to improve the ability of recovery of the reef include improving water quality, controlling outbreaks of coral-eating starfish, and research and development to improve the heat tolerance of corals. " However, climate change brings a new scale of impact unlike anything we have seen before. Thus, dealing with the climate problem is the basis for everything else to work, ” Wachenfeld said.
1.What does the underlined word “mild” in Paragraph 1 probably mean?
A.Serious
B.Strong.
C.Steady.
D.Slight.
2.What can we learn from Paragraphs2 & 3?
A.The majority of the corals on each reef were bleached.
B.The survey was carried out on a plane by Hughes alone.
C.The 2020 bleaching killed off the less heat tolerant species.
D.The 2020 bleaching was worse than those of all the previous years.
3.We can infer from Wachenfeld’s words that people seeing the bleaching events .
A.have done everything they can for the reef
B.are sure to lose hope for the reef
C.will care more about the reef
D.will have no action at all
4.Which is the essential measure to improve the ability of recovery of the reef?
A.Improving water quality.
B.Making efforts to prevent global warming.
C.controlling outbreaks of coral-eating starfish.,
D.Doing research on the heat tolerance of corals.
高一英语阅读选择简单题查看答案及解析